DOI: 10.1016/j.watres.2018.03.043
Scopus记录号: 2-s2.0-85045477796
论文题名: Assessing the origin of bacteria in tap water and distribution system in an unchlorinated drinking water system by SourceTracker using microbial community fingerprints
作者: Liu G. ; Zhang Y. ; van der Mark E. ; Magic-Knezev A. ; Pinto A. ; van den Bogert B. ; Liu W. ; van der Meer W. ; Medema G.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 138 起始页码: 86
结束页码: 96
语种: 英语
英文关键词: Drinking water distribution system
; Microbial community fingerprints
; Next generation sequencing
; Source to tap
; SourceTracker
Scopus关键词: Bacteria
; Biofilms
; Deposits
; Potable water
; Purification
; Water distribution systems
; Water treatment plants
; Distribution systems
; Drinking water systems
; Microbial communities
; Microbial source tracking
; Next-generation sequencing
; Particle associated bacteria
; Purification process
; SourceTracker
; Water treatment
; drinking water
; RNA 16S
; tap water
; assessment method
; bacterium
; biofilm
; biosafety
; drinking water
; genetic analysis
; microbial community
; microbial ecology
; purification
; water treatment
; amplicon
; Article
; bacterium contamination
; DNA extraction
; microbial community
; Netherlands
; priority journal
; suspended particulate matter
; unchlorinated drinking water system
; water sampling
; water supply
; water treatment
; bacterium
; Bayes theorem
; environmental monitoring
; isolation and purification
; microbiology
; statistics and numerical data
; water management
; water pollutant
; Bacteria (microorganisms)
; Bacteria
; Bayes Theorem
; Drinking Water
; Environmental Monitoring
; Water Microbiology
; Water Pollutants
; Water Purification
英文摘要: The general consensus is that the abundance of tap water bacteria is greatly influenced by water purification and distribution. Those bacteria that are released from biofilm in the distribution system are especially considered as the major potential risk for drinking water bio-safety. For the first time, this full-scale study has captured and identified the proportional contribution of the source water, treated water, and distribution system in shaping the tap water bacterial community based on their microbial community fingerprints using the Bayesian “SourceTracker” method. The bacterial community profiles and diversity analyses illustrated that the water purification process shaped the community of planktonic and suspended particle-associated bacteria in treated water. The bacterial communities associated with suspended particles, loose deposits, and biofilm were similar to each other, while the community of tap water planktonic bacteria varied across different locations in distribution system. The microbial source tracking results showed that there was not a detectable contribution of source water to bacterial community in the tap water and distribution system. The planktonic bacteria in the treated water was the major contributor to planktonic bacteria in the tap water (17.7–54.1%). The particle-associated bacterial community in the treated water seeded the bacterial community associated with loose deposits (24.9–32.7%) and biofilm (37.8–43.8%) in the distribution system. In return, the loose deposits and biofilm showed a significant influence on tap water planktonic and particle-associated bacteria, which were location dependent and influenced by hydraulic changes. This was revealed by the increased contribution of loose deposits to tap water planktonic bacteria (from 2.5% to 38.0%) and an increased contribution of biofilm to tap water particle-associated bacteria (from 5.9% to 19.7%) caused by possible hydraulic disturbance from proximal to distal regions. Therefore, our findings indicate that the tap water bacteria could possibly be managed by selecting and operating the purification process properly and cleaning the distribution system effectively. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112775
Appears in Collections: 气候减缓与适应
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作者单位: Oasen Water Company, P.O. Box 122, Gouda, 2800AC, Netherlands; Sanitary Engineering, Department of Water Management, Faculty of Civil Engineering and Geosciences, Delft University of Technology, P.O. Box 5048, Delft, 2600GA, Netherlands; Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, 205 North Mathews Avenue, Urbana, IL 61801, United States; Dunea Water Company, P.O. Box 756, Zoetermeer, AT 2700, Netherlands; Het Water Laboratorium, P.O. Box 734, Haarlem, RS 2003, Netherlands; Department of Civil and Environmental Engineering, Northeastern University, Boston, United States; Baseclear B.V., P.O. Box 1336, Leiden, 2302BH, Netherlands; Science and Technology, University of Twente, P.O. Box 217, Enschede, 7500AE, Netherlands; KWR Watercycle Research Institute, P.O. Box 1072, Nieuwegein, BB 3430, Netherlands
Recommended Citation:
Liu G.,Zhang Y.,van der Mark E.,et al. Assessing the origin of bacteria in tap water and distribution system in an unchlorinated drinking water system by SourceTracker using microbial community fingerprints[J]. Water Research,2018-01-01,138